Possible Causes
| Possible Causes |
|---|
| HIGH PRESSURE FUEL SYSTEM LEAK AT THE SUPPLY TUBE OR INJECTORS |
| LOW PRESSURE FUEL SYSTEM LEAK / RESTRICTION / LOW PRESSURE ISSUE |
| HIGH RESISTANCE IN THE FUEL RAIL PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT |
| HIGH RESISTANCE IN THE FUEL RAIL PRESSURE SENSOR GROUND CIRCUIT |
| HIGH RESISTANCE IN THE FUEL RAIL PRESSURE SIGNAL 1 CIRCUIT |
| HIGH RESISTANCE IN THE FUEL RAIL PRESSURE SIGNAL 2 CIRCUIT |
| HIGH RESISTANCE IN THE FUEL QUANTITY SOLENOID 12 VOLT SUPPLY CIRCUIT |
| HIGH RESISTANCE IN THE FUEL QUANTITY SOLENOID CONTROL CIRCUIT |
| FUEL RAIL PRESSURE SENSOR |
| FAULTY FUEL PUMP MODULE IN THE LOW PRESSURE FUEL SYSTEM |
| FUEL HIGH PRESSURE PUMP/FQS ASSEMBLY |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .